Improved lubricator



'cap againstA injury,

datiert 'gime GREGORY GE'RDOM,

or NEW'YORK, N. Y.

Leners Patent No. 102,391, dateaaprtz 26, 1870.

IMPROVED LUBRICATOR.

The Schedule referred to in these Lettera Patent making part of the 'same To all whom it may conce/rn.-

Be lit known that I, GREGORY GEDoM, of the city, county, and State of New --York, have invented a new and improved Lubricator; and I do hereby declare the following to be a full, clear, and exact description thereof, which will enable those skilled in the art to make and use the same, reference being had to the accompanyingdrawing forming part of 'this speciticaf tion, which drawing represents a vertical central section.

`This invention relates to an improvement in that class of lubricators in which a lubricating compound is used that sets at the ordinary temperature,.and begins to melt and run down upon the surface to -be lubricated whenever said surface begins to heat up.

My improvement consists in the arrangement of a' reservoir made of glass, or any othertrapsparent material, open ou top, and fastened down upon a plat-A form by a tubular central screw, in combination with an openf protecting-'cap, overlapping the` reservoir, and secured in a 'screw-rim on the platform, and with a tube resting upon the bearing to be lubricated, in such a manner that the reservoir is protected by the and, at the same t-ime, the contents of said reservoir can be observed, and, by the tubular central screw and tube, the temperature of the bearing is'transmitted into the reservoir, and the lubricating material isr caused to run down whenever it is required.- To prevent thc tube from clogging up a follower is tted in the same.

In the drawing- A y The letter A designates a reservoir, made of glass or any other transparent' material, open on top, and provided with a hole in the center of its bottom to receive a tubular screw,'a, which-is tapped into the platform B, andv provided with a head, b, so that, by means of sa'd screw, the reservoir can'be firmly se cured to the" platform B.

The tubular screwl and the platform are made of brass or other good' conductor of heat, and from the platform extends a tube, O, the upper part of which is provided with a screw-thread for the purpose of securing itin the axle-box, while its bottom end isfur nished with a foot, c, which is intended to bear upon the surface to be lubricated. If this surface begins to get warm, the heat isy rapidly transmitted through the tube C and screw a to the interior of the reservoir, and inthe tube C is thereby melted and caused to run down upon the surfaceto be lubricated.. As long as this surface remains coldthe lubricating compound .contained iu the tube C and in the reservoir sets, and none. of it is wasted.

.In order to keep a sufficient supply of thelubricating compound in the tube: C, I haveV applied a folthat, by its action,

This follower consists of a disk, provided with notches the melted lubricating compound from the reservoir to the surface to be lubricated.

The reservoir is protected by a cap, E, which is.

screw into a screw-rim, (1., on the platform B, and which is perforated with large openings, so that the interior of the reservoir can be observed. By removing this cap ready access can be had to the` interior of the reservoir .for the purpose of cleaning the same, or to introduce a fresh supply of the lubricating compound.

. What I claim as new and desire to secure by Lettel'S Patent, is-V 1. The foot c, extending from thetube or shank C forth. f

2. The lubricator hereinshown and described, that is to say consist-ing of `the protecting-cap E, platform B, headed screw a., tube C having foot c provided with an orifice for the passage of oil, and a follower D, substantially as herein shown and described.

This specification signed by` me this 8th day of February, 1870.k p

GREGORY GERDOM.

Witnesses:

W. HAUFF. E. F. KASTANHUBER,

and the lubricating compound 4in said reservoirl lower, D, which'is operated by means of a handle, so

the required quantity of the lu. bricating compound can be forced down into the tube.

in its edges, sothat it will not interrupt the flow of provided with a screw-thread at its bottom edge, to'

of the platform B, when combined with the headed' screw a, reservoir A'and cap E, substantially as 'set 

